JLT RAM AIR INTAKE (1997-2003 Ford F-150 and Expedition) with plug and play MAF wire harness 8-12 RWHP and 10-14 RWTQ through out the dyno run Our test truck also showed a 1.5 MPG increase in everyday driving All 97-03 F-150 and Expedition Ram Air Intakes starting today 4/16/13 will include a plug and play MAF wire harness so no more cutting of the stock harness.